PPE in Industry: Chemical vs. Mechanical Risks

In industry, personal protection is not a secondary concern, but a strict prerequisite for safe and continuous production. Personal protective equipment (PPE) serves as the last line of defense: PPE is only considered when source controls, engineering controls, and organizational measures do not sufficiently reduce the risk. This follows the occupational hygiene strategy as outlined by the Dutch government.

In this article, we compare chemical and mechanical risks, explain how to select PPE based on the RI&E / exposure scenario, and provide practical tips to help you avoid mistakes. The goal: a PPE policy that works in practice, aligns seamlessly with Dutch occupational safety and health obligations, and demonstrably contributes to a safe workplace.

Industrial Risks: Why Distinction Matters

An industrial environment is rarely straightforward. In the same facility, cutting hazards, pinching hazards, falling loads, dust generation, solvent vapors, and splashes from cleaning agents can all occur simultaneously. Distinguishing between mechanical and chemical risks is essential because it determines:

• which protection principle is required (impact and cut resistance versus permeation and breakthrough time);

• which European standards are relevant;

• how long PPE remains effective and how you should inspect it;

• which combinations are possible or, conversely, unsafe.

For example, safety glasses that provide excellent protection against flying particles may not offer a sufficient seal against chemical splashes. And gloves with high cut resistance can actually be very vulnerable to solvents. Without a clear understanding of the risks involved, you can easily end up purchasing a product that seems suitable but falls seriously short in practice.

What are mechanical risks?

Mechanical risks arise from moving parts, tools, sharp edges, falling objects, internal conveyance equipment, and physical strain. Examples include:

• cuts and abrasions caused by sheet metal, knives, grinding, or assembly;

• entrapment and crushing by machines, press points, or heavy loads;

• impact from falling objects or swinging parts;

• slips, trips, and falls, for example due to spills or cables lying around.

Mechanical risks require PPE that can absorb, shield against, or resist physical impacts. Fit, freedom of movement, and grip play a major role here, because otherwise users are less likely to wear the PPE consistently.

What are chemical hazards?

Chemical risks arise from exposure to hazardous substances through skin contact, inhalation, ingestion, or eye contact. In industry, these often include cleaning agents, solvents, acids and alkalis, coolants and lubricants, adhesives, resins, and process chemicals. Possible consequences include:

• skin irritation, allergies, or chemical burns;

• eye damage from splashes or corrosive vapors;

• respiratory problems or acute intoxication from vapors, gases, or aerosols;

• serious long-term effects from chronic exposure.

Chemical protection is highly substance-specific. The choice of gloves, clothing, and respiratory protection depends on factors such as concentration, temperature, contact time, mixtures, splashes versus immersion, and available ventilation.

Note: Safety Data Sheets (SDS) are not always sufficient to determine the correct PPE combination. A thorough practical assessment of the exposure scenario remains necessary.

PPE for mechanical hazards: what should you choose and when?

For mechanical hazards, the basic principle is: protect the areas that could be struck, without unnecessarily hindering task performance.

Safety shoes

Choose safety shoes based on the specific environment and the work:

• impact and compression protection against falling loads;

• non-slip soles for wet or oily floors;

• penetration protection against sharp objects on the floor;

• ESD (Electrostatic Discharge) or insulation where there is an electrical hazard.

Standards: Safety shoes in Europe are assessed according to the EN ISO 20345 standard. Specify in your PPE matrix which class and additional requirements are appropriate for the specific task (for example, slip resistance and puncture resistance).

Head protection

Helmets or hard hats are selected based on the risk:

• a safety helmet for falling objects or lifting operations (in accordance with EN 397);

• a hard hat for low-hanging obstacles when no falling loads are expected (in accordance with EN 812).

Pay close attention to the maximum service life, UV exposure, and proper adjustment of the inner lining.

Hand Protection

Select gloves carefully based on the task at hand:

• cut risks require high cut resistance and a suitable grip (tested according to EN 388);

• assembly work requires tactile sensitivity and a snug fit;

• vibration exposure requires specific damping (in accordance with EN ISO 10819).

Important safety warning: Wearing gloves around running machinery can actually pose an additional risk (danger of being pulled in). Strict instructions often require that gloves not be worn when working with rotating parts.

Eye and Face Protection

Standard safety glasses (EN 166) are sufficient for flying particles, while a face shield is required for grinding, machining, or tasks involving high-impact splatter risks. Ensure that eye protection is properly combined with hearing protection and helmets.

Hearing protection

Earmuffs or custom-fit earplugs are required in high-noise environments. In industrial settings, problems often arise from improper noise attenuation: too little is unsafe, while too much hinders communication and leads to non-compliance on the job site.

Fall Protection

When working at heights, fall protection is a complete system, not just a harness on its own. This includes certified anchor points, lanyard systems, a rescue plan, and mandatory periodic inspections.

PPE for Chemical Hazards: From Splashes to Vapors

Selecting PPE for chemical hazards starts with three critical questions: What substance is involved? What is the type of contact? And how long does the exposure last?

Respiratory Protection

The choice between filtering masks and self-contained breathing apparatus depends on the specific substance, the concentration, the oxygen content, and the working conditions:

• dust and mist require the correct filter class (e.g., FFP or particulate filters) and a perfect seal;

• vapors and gases require suitable gas filters and timely filter replacement;

• in cases of unknown concentrations or a risk of oxygen deficiency, an independent breathing air supply is required by law.

For respiratory protection, a fit test, thorough instructions for use, and a strict replacement schedule are essential.

Chemical-resistant gloves

Choosing gloves is never a matter of “nitrile is always the right choice.” Pay specific attention to:

• the breakthrough time and permeation rate for the exact substance or specific mixture in accordance with the EN ISO 374 standard;

• the material thickness versus the required tactile sensitivity;

• a longer cuff or cover to protect against splashes.

In many industrial situations, a double-glove solution is effective: a chemical-resistant inner glove with a mechanically robust outer glove worn over it.

Protective clothing and eye protection

• Chemical-resistant clothing: Splashes require chemical-resistant clothing with an adequate barrier (Type 6 in accordance with EN 13034). The risk of saturation or prolonged contact requires a liquid-tight chemical suit (Type 3/4 in accordance with EN 14605).

• Full-face eye protection: When working with chemicals, fully enclosed wide-view goggles or a face shield are required. Standard open-frame goggles provide insufficient protection against lateral ingress of liquids or vapors.

Combination of Chemical and Mechanical Hazards

In many industrial processes, chemical and mechanical risks occur simultaneously, such as during maintenance work, high-pressure cleaning, filling systems, or sampling. In such cases, it is not sufficient to provide two separate sets of PPE; you must assess whether they function safely in combination.

Key considerations:

• Gloves: Must be both chemically resistant and provide sufficient grip on wet or oily mechanical parts.

• Vision: A face shield against chemical splashes must not obstruct vision by fogging up during strenuous physical activity.

• Heat stress: Chemical suits do not provide ventilation and significantly increase the risk of heat stress. Therefore, schedule breaks and task rotation in advance.

• Compatibility: Helmets, ear muffs, goggles, and masks must never interfere with one another or compromise the seal.

Legislation and Standards: What must you demonstrably have in place?

In the Netherlands, the strict requirements of the Working Conditions Act (Arbowet) and the Working Conditions Decree (Arbobesluit) apply. The key principle is that you must always address risks at the source first and only then use PPE as a supplementary measure. If PPE is necessary, the employer is required to:

• provide suitable and certified PPE free of charge;

• ensure demonstrable instruction and training;

• actively monitor proper use in the workplace;

• ensure maintenance, cleaning, and timely replacement;

• fully justify the procurement and selection based on the Risk Inventory and Evaluation (RI&E).

In addition, all PPE must comply with the strict European product requirements set forth in the PPE Regulation (EU) 2016/425. Therefore, choose only products with a clear CE marking and comprehensive Declarations of Conformity (DoC).

Common Mistakes in PPE Selection in Industry

• Choosing PPE based on intuition: A glove that is mechanically strong may allow chemicals to pass through immediately, while a glove designed purely for chemical protection may tear easily under mechanical stress.

• Focusing solely on the standard: A standard reflects laboratory conditions. Your actual on-the-job conditions may be wetter, warmer, more abrasive, or involve longer exposure times.

• Ignoring comfort: Poorly fitting or uncomfortable PPE is adjusted by employees, worn incorrectly, or simply set aside.

• Lack of a replacement process: Changing filters too late or using respirators past their expiration date are classic failure points during audits.

• Insufficient training on chemical protection: Putting on and taking off chemical PPE is a critical moment. Without training, there is an immediate risk of cross-contamination on clean skin.

Practical tips for safe PPE selection and implementation

• Translate your Risk Inventory and Evaluation (RI&E) into clear, task-oriented PPE matrices for each department or process step.

• Involve end users, the safety officer, and the procurement team in a joint fit test and practical trial.

• Document in writing when PPE must be replaced and who is responsible for monitoring this.

• Train employees periodically on proper use, limitations, and the strict sequence for putting on and taking off PPE.

• Physically check combinations on the work floor: Do the goggles fit snugly under the face shield? Does the mask fit perfectly under the helmet?

Checklist: Is your PPE policy “audit-proof”?

Use the points below as a quick internal check:

• Is the Risk Assessment up to date and clearly translated into task-specific PPE requirements?

• Is all PPE used demonstrably compliant with the PPE Regulation (EU) 2016/425 (CE marking and documentation available)?

• Are the specific standards selected (e.g., EN 388, EN ISO 374, EN 166) demonstrably linked to your exposure scenarios?

• Is the process for inspection, cleaning, storage, and replacement documented and operational?

• Have users received verifiable training, and is compliance verifiably monitored?

Action Item: Would you like to refine your industrial PPE policy based on reliable workplace analyses, standards, or practical fit tests? Then schedule an internal PPE review this month based on your Risk Inventory and Evaluation (RI&E), or have critical tasks (such as chemical handling, maintenance, and high-pressure cleaning) observed in practice. With a well-founded selection process and a robust management system, PPE becomes not just a one-off purchase, but an integral and safe component of your safety management. This way, you not only increase compliance but, above all, enhance actual protection on the job site.